New Delhi, Dec. 3 -- Traditional in-ear and over-ear headphones are built to create an immersive bubble, but in many contexts, immersion is a liability. It makes us unsafe on the street and anti-social in the office. This is the problem that bone conduction technology aims to solve with tech that allows you to hear two worlds at once.

Of course, bone conduction headphones are not sold on their audio fidelity. The primary pitch of these headphones is situational awareness. For runners, cyclists, and urban pedestrians, the ability to hear ambient sounds like traffic, horns, approaching vehicles, or other people is a life-saving feature. In fact, some athletic events and marathons now prohibit traditional in-ear headphones, making bone cond...